Hi, we're Freya and Mike.
Our Uncle Bob has invented an app in San Francisco, in the USA.
Can you guess what the app does?
San Francisco is in California. California is one of 50 states that make up the United States of America - USA - in the continent of North America.
San Francisco is on the coast and it's very hilly. Some hills are so steep, there are staircases in them, so that they are easier to climb up!
Do you remember what we saw in San Francisco?
Watch this video to see more of San Francisco!
World words
Use these words to help you when describing cities like San Francisco.
- Coast - an area where the land meets the sea or ocean.
- Harbour - a protected place by the coast where ships can be tied up to shelter from bad weather.
- Hill - an area of land that is higher than the land around it.
- Island - an area of land surrounded by water.
- Office - a room or a building where people work.
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